Java read device file

I think the best way is to use java. URL to open a InputSteam, because you can generalize it to files, that are not necessarily on the same network. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow.

Learn more. Asked 12 years, 2 months ago. Active 2 months ago. Viewed 66k times. Can someone help me to find a tutorial or sample java code to read a file from any machine which is in the same network.

Ujitha Perera 27 1 1 silver badge 7 7 bronze badges. How do you want to access the file? Add a comment. Active Oldest Votes. The simplest way to do this would be to read it using regular file paths. Steven 2 2 gold badges 11 11 silver badges 21 21 bronze badges.

Chris Dail Chris Dail Is there a solution on Linux that doesn't require mounting the share? I don't have permission to use the mount command, and if I try to use the Windows solution, it creates a file in the local directory with slashes in the name. BufferedPacketReciver run com. Packet, java. This page discusses the details of reading, writing, creating, and opening files.

On the far left of the diagram are the utility methods readAllBytes , readAllLines , and the write methods, designed for simple, common cases. To the right of those are the methods used to iterate over a stream or lines of text, such as newBufferedReader , newBufferedWriter , then newInputStream and newOutputStream. These methods are interoperable with the java. Several of the methods in this section take an optional OpenOptions parameter.

This parameter is optional and the API tells you what the default behavior is for the method when none is specified. If you have a small-ish file and you would like to read its entire contents in one pass, you can use the readAllBytes Path or readAllLines Path, Charset method.

These methods take care of most of the work for you, such as opening and closing the stream, but are not intended for handling large files. The following code shows how to use the readAllBytes method:.

The java. The newBufferedReader Path, Charset method opens a file for reading, returning a BufferedReader that can be used to read text from a file in an efficient manner. The following code snippet shows how to use the newBufferedReader method to read from a file. This method returns an unbuffered input stream for reading bytes from the file. You can create a file, append to a file, or write to a file by using the newOutputStream Path, OpenOption This method opens or creates a file for writing bytes and returns an unbuffered output stream.

Earlier "line" was not getting assigned any value and was null. I'm asking you to explain to the user why they should change there code to match your recommendations ; — MadProgrammer. MadProgrammer thank you for the insight. MadProgrammer, thank you for the guidance in trying to show me why. I understand that the String line was initialized but wasn't getting anything added to it until I added it to the while method. It's probably just that I'm old school, but I'm curious about while br.

My main concern is, as I read it, that ready only tells you if the next readLine will block or not. While reading a file may be valid a use, I can think of times when a file may "block" ie reading over a slow network , but certainly if used to read from other streams, it would be of concern to me You're right. I always use buffered reader for reading a text file in local disc and I have never came across the this problem slow connection.

I understood thank you for your interest. Now, it works. You stated earlier about something about BufferedReader, is that the best way to read a file? What were you saying about a slow network connection? Is there a time frame before BufferedReader returns a null? What would be the best way to read a file? Thank you. The problem is that I always use while br. The Overflow Blog. Stack Gives Back Safety in numbers: crowdsourcing data on nefarious IP addresses.

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